﻿	package pk;

	public enum java {
		U1,U2,U3
}



	package pk;

	public enum dojava{
		public void doWhat(java u){
			switch(u){
			case U1:

				System.out.print("打基础");
				break;
			case U2:

				System.out.print("开发");
				break;
			case U3:

				System.out.print("企业开发");
				break;
			
			}
		}


		public static void main(String[] args){
			week s=new javaDemo();
			s.doWhat(dojava.U3);

} 